1. Still in doubt
   "an unsettled issue"; "an unsettled state of mind" 
2. Not settled or established
   "an unsettled lifestyle" 
3. Subject to change
   "unsettled weather with rain and hail and sunshine coming one right after the other"
   - changeable, uncertain 
4. Not yet settled
   "unsettled territory"

1. Disturb the composure of
   - faze, unnerve, enervate

See also: aimless, doubtful, drifting, erratic, floating, homeless, itinerant, migrant, migratory, mobile, nomadic, open, peregrine, peripatetic, planetary, rootless, roving, stateless, tentative, undecided, undetermined, uninhabited, unlocated, unresolved, vagabond, vagrant, variable, wandering, wayfaring

Type of: discomfit, discompose, disconcert, untune, upset

Antonym: settled

• empiric
• empirical
• empirical formula
• empirical research
• empirically
• empiricism
• empiricist
• empiricist philosophy
• Empirin
• emplace
• emplacement
• emplane
• unconnected
• unconnectedness
• unconquerable
• unconquered
• unconscientious
• unconscientiousness
• unconscionable
• unconscionably
• unconscious
• unconscious mind
• unconscious process
• unconsciously
• unconsciousness